3D3UL,断路器 3A, D CHAR, 3POLE 480Y/277VAC,UL489
3D3UM,断路器 3A D Characteristic UL 508 3 POLE
3D3UR,断路器 3A,MCB D CHAR 3PL 480Y/277VAC, UL1077
3D40-EDU2,3D40 EDU ACCESSORIES
3D40UL,断路器 40A, D CHAR, 3POLE 240VAC,UL489
3D40UM,断路器 40A D Characteristic UL 508 3 POLE
3D40UR,断路器 40A,MCB D CHAR 3PL 480Y/277VAC, UL1077
3D4UL,断路器 4A, D CHAR, 3POLE 480Y/277VAC,UL489
